I did read your first post, but try using the choke maybe half way.
Don't know what you consider "cold", but chokes were placed on carburetors to be used.
It sounds like the carb is way too rich, not needing choke prior to the weather changing.
Jon
Good carburetion is fuelish hot air The most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes! The Carburetor Shop
